#include <STC15F2K60S2.H>

void system_int()
{
	P0 = 0XFF;
	P2 = P2&0X1F |0X80;
	P2 &=0X1F;
	
	
	P0 = 0X00;
	P2 = P2&0X1F |0XA0;
	P2 &=0X1F;



}